I got update of linux zen 5.12.3.zen1-1 after updating to it grub loader is showing two options for same garuda linux, another garuda linux is added on grub and named it like this -- Garuda linux (on dev/sda2)
and booting from this option boots normally as usual then why this another option is added
i want to remove this another added option because both are same
apart from this topic
grub loader is showing windows boot loader also ( i have not dual booted garuda with windows)
i want to remove windows boot loader option form grub how can i remove it?
I just updated to the same kernel and had no problems with grub afterwards, so this should be due to your specific configuration.
The second problem is even stranger!
Let me try to guess: you use or used in the past grub-customizer?
I have not just updated kernel but there are other things also that I got update of , kernel was one of those update maybe other things in update have configured grub loader
I was previously using Windows 10 but now I am using garuda Linux (not dual booted with windows) I think some of windows files are still there that's why grub is showing windows boot manager ( I am seeing this windows boot manager option when I installed garuda no connection with this update)
I want to delete windows boot manager remove it from grub how can I?
For the "duplication" problem, I don't know.
The reference for you to "study" is: https://wiki.archlinux.org/title/GRUB
As you'll see and probably know, /boot/grub/grub.cfg is generated automatically by a variety of options in /etc/default/grub and scripts in /etc/grub.d/.
You could easily solve the problem correcting /boot/grub/grub.cfg, but problably the issue will re-appear next time you update the grub.
Checking options in /etc/default/grub and scripts in /etc/grub.d/ could be quite complex, but you can try.
Maybe (but I'm really guessing here) you could chroot from an live USB (to start from a clean status, I don't know), reinstall the bootloader and upgrade grub according to:
For the "Garuda Linux on /dev/..." I've had this too, particularly after restoring from a snapshot and performing a further update. Besides the cosmetic itch it's nothing to worry about. For the Windows thing, it sounds like the efi partition was just not formatted during installations, so deleting the Windows folder as @filo suggests sounds like a good starting point.